| Tail Number / N-Number | N921DR |
| Manufacturer | DENNIS O RAMSEY |
| Model | LANCAIR IV |
| Year Built | 2012 |
| Manufacturer's Serial Number | LIV-091 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | IO-550-N |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 310 hp (231 kW) |
| Kit Manufacturer | LANCAIR INTL INC |
| Kit Model | LANCAIR IV |
| Type of Registrant | LLC |
| Owner Name | YESMAR LLC |
| Street | 3511 SILVERSIDE RD STE 105 |
| City | WILMINGTON |
| State | DE |
| Zip Code | 19810-4902 |
| Region | Eastern |
| County | New Castle County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2012-05-24 |
| Certificate Issue Date | 2011-09-07 |
| Last Action Date | 2020-04-27 |
| Expiration Date | 2027-09-30 |
| Status | Valid Registration |
| Mode S Code | 53141074 |
| Mode S Code Hex | ACC23C |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N921DR.
| Tail Number / N-Number | N921DR |
| Manufacturer | DRAKE DANIEL D |
| Model | MK IV |
| Year Built | 1993 |
| Manufacturer's Serial Number | 1152 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | BOMBARDIER |
| Engine Model | ROTAX (ALL) |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | BUTLER DONALD D |
| Street | RR 2 BOX 437 |
| City | PETERSBURG |
| State | PA |
| Zip Code | 16669-9612 |
| County | New Castle County |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1993-06-15 |
| Certificate Issue Date | 2000-03-14 |
| Last Action Date | 2003-03-18 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 2003-05-21 |